Ship.



No. 875,734. PATENTED JANL7, 1908. J. REID.

'SHIP.

APPLICATION FILED JUNE 14. 1907.

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J. REID. SHIP APPLIGATION FILED JUNI: 14. 1907,

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JOHN REID, OF NEW YORK, N. Y.

SHIP.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed June 14. 1907. Serial No. 379043.

To all whom fit may concern:

Be it known that I, JOnN REID, a subject of the King of Great Britain, residing at 41 Park Row, in the city and State of New York, in the United States of America, have invented certain new and useful Improvements in Ships, of which the following is a specification.

The invention relates to improvements in ships and particularly the hatch construction thereof, as described in the present specifican tion and shown in the accompanying drawings that form part of the same.

The invention consists essentially of the novel construction and arrangement of parts whereby two adjoining covers are supported l above the sides ot the hatch wayin different planes one of said covers being adapted to be raised and lowered and the other to travel on suitable track ways.

The objects of the invention are to strengthen the ships structure, to devise a convenient arrangement of opening and closing the hatch of a ship, to insure a large opening into the hold free from permanent deck divisions and to provide a durable and tight covering for the protection of the cargo therebeneath.

ln the drawings, Figure 1 is a sectional perspective view of a hatch way into a ships hold showing a pair of adjoining covers partially broken away to disclose the traveling support of one of said covers. Fig. 2 is a reduced longitudinal and sectional view of a plurality of hatch coverings. Fig. 3 is a longitudinal part sectional view 'through the sides of the covers, track-way and deck of the ship. Fig. 4 is a sectional detail of one side of two adjoining covers showing the supports therefor and the means of raising the Fig. 5 is a perspective detail of a 'means for gripping the traveling hatch covers to an endless cable.

In the construction of large ships particularly for the Great Lakes of North America, the shortening of the period of time Vfor unloading the cargo has become a very important feature in the items of expense in connection with the transportation of cargoes in bulk s-uch as ore.

The short seasons of navigation render it necessary to effect as many round trips for the large 'freigl'1ters, as the brief season of navigation will permit and with this in view large machines have been devised and put in operation for removing the cargoes from the ships. The handling of these machines is much facilitated by providing large hatch openings into the hold of the ship and the most common practice is to have a great many of these openings in the deck of the ship throughout its length, but the permanent deck divisions remain and considerably hamper the operation of the unloading machine, and it is with a view of overcoming these difliculties, that, in the present invention, l have devised a means in which a plu* rality of large openings into the hold is assured, or if required one large opening at the particular part of the hold from which the cargo is being removed.

,Referring to the drawings, 1 is the deck of the ship and 2 the side coamings of the hatchway.

3 are arch beams extending across said hatch-way opening and secured to the frames 4f as usual in ship construction.

5 are track-ways having the downwardly extending .flanges 6 from their inner sides securely bolted to the inner faces of the coaniings 2, the said track-ways` extending outwardly from said eoamings and having the downwardly turned outer edges 7. The track-ways 5 extend along the coamings 2 throughout the entire length of the hatchway.

8 is a hatch cover rigidly secured at each side to the brackets 9, though it must be understood that the material forming said hatch cover may form part with said brackets.

l() are spindles arranged at intervals across the sides 11 and 12 of the said brackets 9 and preferably in the form of bolts extending through said sides.

13 are rollers journaled on the spindles 10 and traveling on the track ways 5 and having the annular Vflanges 14 at each side of the tread of the rollers. The sides l1 of the brackets 9 curve around under the track ways 5 and have the orifices 15 therethrough.

16 are blocks arranged in the inner side of the curve of the sides 11 and having an orifice therethrough registering with the orifices 15.

17 are hooks having the threaded shanks 18 extending through the blocks 16 and through the orifices 15, and 19 are nuts placed on the threadedends of the Shanks 1S for the purpose of drawing said hooks 17 into a recess arranged in the said blocks 16.

2() are endless cables here shown as around the pulleys '2l and 0') the latter being suitsaid hatch cover along the track ways 5, as

the rollers forming part of said hatch cover construction run freely on said track way. Further it may be said in connection with the grip of the hook 17 on the cable 20 that the said hatch cover 8 may be held firmly to its position, while the cable is still, that is to say,

when the cable is not running the hatch covers may be locked by gripping them to said cable.

28 are flanges extending upwardly from each end of the hatch cover 8 and completely thereacross, the preferable construction of said flanges being an angle iron having one section securely riveted to the longitudinal edges of the plates forming the said hatch cover and the other section extending upwardly therefrom.

24 are blocks securely riveted to the upper and outer surface of the brackets 9 forming rests.

25 is a hatch cover rigidly secured at the sides thereof to the brackets 26 though it must be understood that the said brackets -may forni part with the material of said cover. The outer sides of the brackets 26 extend downwardly and are curved inwardly at 27.

28 are flanges extending downwardly from the longitudinal edges of the covers 25 and preferably formed of an angle piece having its horizontal section securely riveted to the upper sides of the plates forming the said hatch cover 25, consequently in the extended position of said hatch covers, the inner sur-v face of one of the flanges 28 will contact with the inner surface of one of the flanges 23 and thus form a good oint, when the hatch way into the hold is closed by said covers. The hatch cover 25, when t-he hold is left open for any length of time, rests on the blocks 24, consequently the two hatch covers may be moved together when the cable 20 is in motion and gripping the hatch cover 8.

29 are shafts extending longitudinally to the full length of the hatch-way and jour naled in the brackets 30. The brackets 30 are rigidly secured to the channel irons 31, the said channel irons having one of their sides riveted to the deck of the ship and the bed thereof abutting the coamings 2.

82 are slots in the upper sides of said channel iron at intervals throughout its length.

33 are cams iixedly secured on the shafts 29 opposite the slots 32, so that on turning said shafts by means of suitable connections to steam or other engine for the purpose, the

points of said cams are turned upwardly through the slots 32 and in reaching their upper position, the said cams engage the outer lower surface of the inward curves 27 of the brackets 26 thus raising the hatch cover 25 so that the hatch cover 8 may roll freely thereunder or from thereunder as the case may be. The coamings 2 extend downwardly at 34 and form with said downward extensions, longitudinal girders secured to the deck 1 and forming important reinforcing parts to the ship structure.

In the operation of this invention, it may be presumed for convenience that in the hatch coverings described in detail hereinbefore, a plurality of pairs cover in the entire hold of an ore carrying vessel. With the hatch way thus closed, the inner surface of the flanges of the upper covers engage the inner surfaces of the flanges from the lower covers and when the said covers are extended longitudinally, as far as they will go, said flanges form a very good joint and prevent the cargo suffering from the inclemencies of the weather. On the vessel reaching its destination the connection from the engines to the shafts 29 is established, and the said shafts turned, which has the effect of raising the hatch covers 25 to a level sufficient to permit the flanges from the covers 8 to clear the flanges from the covers 25. The connection is then established necessary to set the cable 20 in motion and this has the effect of rolling the hatch covers 8 under the hatch covers 25. So soon as the hatch covers 8 are under the hatch covers 25, the motion of the cable is stopped and the shafts 29 again turned to lower the hatch covers 25 on to the blocks 24. The position of the hatch covers 25 and 8 is now such that any further motion of the cable will draw any pair of hatch covers along which maybe gripped thereto, that is to say, provided the gripping hooks 17 are loosened in one or more pairs of the hatch covers, the other pairs of hatch covers may be drawn thereto, until all the pairs are together leaving one half of the hatchway, to' the hold into the ship, open. Of course, it will be understood that in the latter action, that is of drawing the pairs of hatch covers together, the grips to the end hatch covers must always be loosened, so as to permit the cable to pass freely therethrough, and as each pair closes in to that particular end of the hatchway, the grip must be loosened and thus bring the next pair up to it and so on until they are all together.

The various pairs of hatch ways may be manipulated to suit the conditions 'and a large opening may be left in the center or towards one end as desired, or again it may not be necessary to do this at all, just simply bring the lower level covers under the upper level covers and have the several openings into which the member from the unloading machine may dip. In the latter case, the

first period. of motion of the endless cable will suffice to open all the lower level covers.

The construction of the hatch covers is not particularly set forth in this specification as many different forms of consi rue.` ion may be they may be used, but it will be seen thaiy made very strong, the upper plates being reinforced by heavy beams riveted thereto and extending completely thereacross, further it has been intima-Led in the present description, that these covers are made of plates of metal, but it must be understood that l do not con- Vline myself to any particular general construction for the said covers either as lo material or form.

The form of gripping device herein shown, and the manner of moving the covers specificatly set forth are not essential to the invention, though in all probability the device will be used with substantially the same Vparts as described, but the elimination of any of the said parts and the substitution of others therefor will not materially affect the nature of the invention, which is to elevate one plate and to bring the plates in such a position that one will rest over the other when. the hatch- Way is open.

Much emphasis has been placed on the hatch coverings in this description, particularly setting forth the details and the operation thereof, but the fact must-not be overlooked that the ship structure in itself is much strengthened by the 'jntrticular form of construction used in arranging said hatch opening, this, of course, referring more particularly to ships having trunk holds and therefore being associated with hatch coverings such as described.

Itis `necessary Where the hat ch opening extends for a considerable length along the ship to have stre/ngthening` features, which will prevent any undue straining and the longitudinal girders secured to the deck, supporing at the top the track ways for the hatch coverings, add materialy to the strength of the ship, rthese with the hatch coverings dcscribed herein lessening the, number of arch beams necessary and thereby minimizing the number of obstructions in the said hatch opening and thus facilitating the removal of the cargo.

Vliat I claim as my invention is:

l. In a ships hatch construction, the combination with suitable supports projecting upwardly Vfrom the sides of the hatch vvay, of a cover traveling along` said supports, a cover adjoining the aforesaid cover and arranged in a l'iigher level, means for raising and supporting the upper cover, and means for causing the lower cover to travel along said supports under the higher cover, substantially as described.

2. In a ships hatch construction, the combination with the side coamings of the hatch way and track ways rigidly secured thereto at l the upper end, of a cover extending across said l hatch n ay and traveling on said track ways, ,l a cover normally supported on the said cover, l means for raising` and supporting the upper j cover from the loner cover, and means for causing the lower cover to travel along said track ways, substantially as described.

2%. In a ship's hatch construction, the combination 'with the side coamings and a track way rigidly secured tothe top ends of said side coamings, of a cover having bracket extensions therefrom at cach side. thereof, bearings arranged in said brackets, rollers journaled on said bearings and traveling on said track way, a cover normally resting on the said cover and having extensions at each side thereofsurrounding the aforesaid bracket extensions of the lower cover, means engaging said extensions of the upper cover for the raising of said upper cover from the lower cover, and means for causing said lower cover to travel on said track ways, substantially as described.

/l. lin a ships hatch construction, the combination with track ways supported at the, sides of the hatch way, of a cover extending across said hatch way and supported and traveling on said track way, a cover extending across said hatch way and adapted to be raised and supported above the aforesaid cover, a cable passing along said hatch way adjacent with the side thereof and adapted to be connected to said traveling cover, and means for setting said cable in motion, substantially as described.

ln a ships hatchconstruction, the combination with track ways supported at the sides of the hatch way, of a cover traveling on said track ways, an adjoining cover adapted to be raised above the aforesaid cover, endless cables extending along the sides of said hatch. way having one rope thereof in proximity to said track and said traveling cover, and means extending from said traveling cover for gripping said cable to said cover and freeing said cover from said cable, substantially as described.

ln a device of the class described, in combination, a pair of track ways arranged at the sides of the hatch way respectively, a plurality of covers having their sides extending around said track ways, means within said sides for supporting said covers on said track ways, a plurality of covers arranged in a different plane from the aforesaid covers and supported thereon, means for raising said upper covers, and means. for moving said lower covers under said upper covers, substantially as described.

7. In a device of the class described, in combination, a pair of track ways arranged at the sides of the hatch .vay respectively, a plurality of covers traveling on said track i way, a plurality of covers arranged in a different plane and supported on the aforesaid covers and having their sides extend around said track Ways, a pair of shafts suitably j ournaled and longitudinally arranged under said track Way, a plurality of cams ixedly mounted on said shafts and engaging said upper covers, means for operating said shafts,

and means for moving said traveling covers,

substantially as described.

S. ln a device of the class described, a pair of track Ways arranged along the sides of the hatch Way respectively, a plurality of covers traveling on said track-Ways and having their sides extend around and inwardly under said track-Ways and upwardly turned Aflanges at their longitudinal ends, a plurality of covers arranged in a higher plane than the aforesaid covers and having their sides extend around and under said track-Ways and downwardly extending flanges at their longitudinal ends, endless cables turning on suitable pulleys and passing through the inwardly turned portions under the aforesaid tracks of the traveling covers, gripping means extending from said inwardly turned portions to said cables,

shafts suitably journaled beneath said track- Ways, cams on said shafts engaging said upper covers, means for rotating said shafts, and means for setting said cable in motion, substantially as described.

9. ln a device of the class described, a deck having a longitudinally arranged hatch opening, plate girders arranged along the side edges of said hatch opening, rigidly secured to said deck and extending thereabove and below, said plates forming a continuous longitudinal girder at each side of said hatch openingl and tracks at their upper extremities, Wide spaced arch beams rigidly secured to said plates at intervals and extending across said hatch opening, and hatch coverings slidably arranged on said tracks, substantially as described.

Signed at the city and district of Montreal, in the Province of Quebec, in the Dominion of Canada, this 11th day of June, 1907.

JOHN REID. l/Vitnesses G. H. TRESIDDER, LLOYD BLAoKMoRE. 

